77417204 ÷ 639 
The aim is to understand the frequency of 639 in 77417204.

Moving on to step 1:
7 divided by 639 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 639

Going ahead to step 2:
If we divide 77 by 639, we get 0 and a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Bring next digit (4) of the dividend behind the 77 and repeat the process: 774 / 639

Advancing to step 3:
639 goes into 774 1 times with a remainder of 135.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 135 after subtracting 639 from 774.
Grab the next digit (1) from the dividend, add it to 135, then carry on: 1351 / 639

On to step 4:
1351 divided by 639 is 2 with a remainder of 73.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1278 from 1351 leaves us with 73.
Bring next digit (7) of the dividend behind the 73 and repeat the process: 737 / 639

Moving on to step 5:
When dividing 737 by 639, we get 1 with a remainder of 98.
Put 1 as the next digit of the answer. 
Result so far: 121.0
The remainder is 98 after subtracting 639 from 737.
Append the next digit (2) from the dividend to 98 and continue with: 982 / 639

Going ahead to step 6:
982 divided by 639 is 1 with a remainder of 343.
Put 1 as the next digit of the answer. 
Result so far: 1211.0
If we take 639 away from 982, we end up with 343.
Grab the next digit (0) from the dividend, add it to 343, then carry on: 3430 / 639

On to step 7:
639 can be fit into 3430 5 times, resulting in a remainder of 235.
The next digit of our result is 5. 
Result so far: 12115.0
The remainder is 235 after subtracting 3195 from 3430.
Fetch the next digit (4) from the dividend, attach it to 235 and continue: 2354 / 639

On to step 8:
639 can be fit into 2354 3 times, resulting in a remainder of 437.
The number 3 becomes the next digit in our result. 
Result so far: 121153.0
Subtracting 1917 from 2354 leaves us with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Going ahead to step 9:
639 can be fit into 4370 6 times, resulting in a remainder of 536.
Record the quotient 6 as the next digit in the result. 
Result so far: 121153.6
Deduct 3834 from 4370 and we're left with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Advancing to step 10:
639 can be fit into 5360 8 times, resulting in a remainder of 248.
The number 8 becomes the next digit in our result. 
Result so far: 121153.68
Subtract 5112 from 5360 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 11:
When dividing 2480 by 639, we get 3 with a remainder of 563.
Record the quotient 3 as the next digit in the result. 
Result so far: 121153.683
Subtract 1917 from 2480 to get 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Moving on to step 12:
639 goes into 5630 8 times with a remainder of 518.
The number 8 becomes the next digit in our result. 
Result so far: 121153.6838
Deduct 5112 from 5630 and we're left with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Going ahead to step 13:
When dividing 5180 by 639, we get 8 with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 121153.68388
If we subtract 5112 from 5180, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

In conclusion, the division gives 121153.68388 with a balance of 6.8e-05.